Xbox360 hacking

Hey, I need to know how to put my hacks on my xbox360, i have no problem making them but i just need to know how to transfer them, I was specifically pointing towards the game Gears of War 2 and Modern Warfare 2

use a USB stick but I dunno how to inject :S

For you to "inject" the hack you need to insert a USB stick with the hacks on it into your XBOX. Save it to your harddrive, and then flash your XBOX so your saved games go away, then put the flash drive BACK in your XBOX, and BOOM, hacking away. But you need to make hotkeys for your controller.